Property And Equipment (Summary Of Property And Equipment) (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Jun. 30, 2017
Property, Plant and Equipment [Line Items]
Gross Property and Equipment	$ 23,849	$ 25,256
Less - Accumulated depreciation	(17,123)	(17,879)
Property and Equipment, Net	6,726	7,377
Building and Land [Member]
Property, Plant and Equipment [Line Items]
Gross Property and Equipment	7,945	7,788
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Gross Property and Equipment	14,842	16,414
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Gross Property and Equipment	$ 1,062	$ 1,054